USB digital GPIO I/O extender
USB IO Board Stick Kit - Electronics-DIY.com
USB-Based 8 Relay Output, 8 Isolated Input, Digital I/O System
USB digital GPIO I/O extender
USB 96-Channel Digital I/O Devices - Measurement Computing
USB-DIO-32 USB 32-Bit Digital Input/Output Module - ACCES I/O Products
USB 32-Bit High-Speed Digital I/O Devices - Measurement Computing
USB GPIO interface for Raspberry Pi,OpenWrt,PC from Peter Jakab on Tindie
USB Relay Controllers with On-Board Analog Inputs and GPIO for Sensors
USB-AO-ARB1: 8MHz 16-bit Analog Waveform Output USB Board - ACCES I/O Products
4-Channel Push Notification Contact Closure Input over USB - store.ncd.io
Yocto-IO - USB device with 4 digital I/O
32-Channel Isolated Digital I/O USB Data Acquisition Module
X-keys USB General Purpose Input Output Module XK-1502-UHIO14-R
USB-4750 - 32-ch Isolated Digital I/O USB Module - Advantech
USB 24-Channel Digital I/O Boards - Measurement Computing
Industrial IoT Wireless USB Gateway/Modem Receiver
USB digital GPIO I/O extender
USB 8 Opto-Isolated Digital Inputs Module - Denkovi A E LTD
Odroid USB IO Board
IO-1616: Input/output Card with 16 inputs and 16 outputs and USB or RS232 interface | Ipses
USB IO-Link Cable for TA Series: Amazon.com: Industrial & Scientific
